fix listings in chapter15, update ch15 ch16 submodules

Author: Xronophobe

chapter_15_advanced_forms.asciidoc

@@ -815,25 +815,25 @@ use Django instead, it seems like we need to bring back our custom
 -            {{ form.text }}
 -            {% csrf_token %}
 +          <form
-+              class="was-validated"
-+              method="POST"
-+              action="{% block form_action %}{% endblock %}"
++            class="was-validated"  <1>
++            method="POST"
++            action="{% block form_action %}{% endblock %}"
 +          >
-+              {% csrf_token %}
-+              <input
-+                  id="id_text"
-+                  name="text"
-+                  class="form-control
-+                         form-control-lg
-+                         {% if form.errors %}is-invalid{% endif %}"
-+                  placeholder="Enter a to-do item"
-+                  value="{{ form.text.value }}"
-+                  aria-describedby="id_text_feedback"
-+                  required
-+              />
++            {% csrf_token %}
++            <input   <2>
++              id="id_text"
++              name="text"
++              class="form-control
++                     form-control-lg
++                     {% if form.errors %}is-invalid{% endif %}"  <2>
++              placeholder="Enter a to-do item"
++              value="{{ form.text.value }}"
++              aria-describedby="id_text_feedback"
++              required
++            />
              {% if form.errors %}
 -              <div class="invalid-feedback">{{ form.errors.text }}</div>
-+              <div class="invalid-feedback">{{ form.errors.text.0 }}</div>
++              <div class="invalid-feedback">{{ form.errors.text.0 }}</div>   <3>
              {% endif %}
            </form>
          </div>

chapter_16_javascript.asciidoc

@@ -100,7 +100,7 @@ The functional test fails appropriately:
 
 
 
-[role="small-code dofirst-ch16l000"]
+[role="small-code"]
 [subs="specialcharacters,macros"]
 ----
 $ pass:quotes[*python src/manage.py test functional_tests.test_list_item_validation.\

pygments-default.css

@@ -1,3 +1,8 @@
+pre { line-height: 125%; }
+td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
+span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
+td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
+span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
 pre.pygments .hll { background-color: #ffffcc }
 pre.pygments { background: #f8f8f8; }
 pre.pygments .tok-c { color: #3D7B7B; font-style: italic } /* Comment */
@@ -12,7 +17,6 @@ pre.pygments .tok-c1 { color: #3D7B7B; font-style: italic } /* Comment.Single */
 pre.pygments .tok-cs { color: #3D7B7B; font-style: italic } /* Comment.Special */
 pre.pygments .tok-gd { color: #A00000 } /* Generic.Deleted */
 pre.pygments .tok-ge { font-style: italic } /* Generic.Emph */
-pre.pygments .tok-ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
 pre.pygments .tok-gr { color: #E40000 } /* Generic.Error */
 pre.pygments .tok-gh { color: #000080; font-weight: bold } /* Generic.Heading */
 pre.pygments .tok-gi { color: #008400 } /* Generic.Inserted */